4x4

//ˌfɔː(ɹ)baɪˈfɔː(ɹ)// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A piece of timber with a cross section of 4 inches square.
  2. 2
    A four-wheel vehicle with four-wheel drive.
  3. 3
    A four-wheel-drive vehicle with a four-speed transmission.
  4. 4
    Any vehicle with four-wheel drive. broadly

Synonyms

All synonyms
4 by 44-by-44by44by44wd4wd

Etymology

Etymology 1

From its dimensions (4 inches by 4 inches); the 'x' is a substitute for the multiplication symbol ×.

Etymology 2

From various combinations of having four-wheel drive, having four wheels, and/or having a four-speed transmission.

Related phrases

4x4x4 - (4x4 with 4-wheel steering)four wheel drive

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.